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/*
* (C) Copyright 2010 Juergen Beisert - Pengutronix
* (C) Copyright 2011 Wolfram Sang - Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <init.h>
#include <gpio.h>
#include <environment.h>
#include <mci.h>
#include <asm/armlinux.h>
#include <generated/mach-types.h>
#include <mach/imx-regs.h>
#include <mach/clock.h>
#include <mach/mci.h>
static struct mxs_mci_platform_data mci_pdata = {
.caps = MMC_MODE_4BIT,
.voltages = MMC_VDD_32_33 | MMC_VDD_33_34, /* fixed to 3.3 V */
};
static const uint32_t pad_setup[] = {
/* SD card interface */
SSP1_DATA0 | PULLUP(1),
SSP1_DATA1 | PULLUP(1),
SSP1_DATA2 | PULLUP(1),
SSP1_DATA3 | PULLUP(1),
SSP1_SCK,
SSP1_CMD | PULLUP(1),
SSP1_DETECT | PULLUP(1),
};
static int mx23_evk_mem_init(void)
{
arm_add_mem_device("ram0", IMX_MEMORY_BASE, 32 * 1024 * 1024);
return 0;
}
mem_initcall(mx23_evk_mem_init);
static int mx23_evk_devices_init(void)
{
int i;
/* initizalize gpios */
for (i = 0; i < ARRAY_SIZE(pad_setup); i++)
imx_gpio_mode(pad_setup[i]);
armlinux_set_bootparams((void*)IMX_MEMORY_BASE + 0x100);
armlinux_set_architecture(MACH_TYPE_MX23EVK);
imx_set_ioclk(480000000); /* enable IOCLK to run at the PLL frequency */
imx_set_sspclk(0, 100000000, 1);
add_generic_device("mxs_mci", 0, NULL, IMX_SSP1_BASE, 0,
IORESOURCE_MEM, &mci_pdata);
return 0;
}
device_initcall(mx23_evk_devices_init);
static int mx23_evk_console_init(void)
{
add_generic_device("stm_serial", 0, NULL, IMX_DBGUART_BASE, 8192,
IORESOURCE_MEM, NULL);
return 0;
}
console_initcall(mx23_evk_console_init);
/** @page mx23_evk Freescale's i.MX23 evaluation kit
This CPU card is based on an i.MX23 CPU. The card is shipped with:
- 32 MiB synchronous dynamic RAM (mobile DDR type)
- ENC28j60 based network (over SPI)
Memory layout when @b barebox is running:
- 0x40000000 start of SDRAM
- 0x40000100 start of kernel's boot parameters
- below malloc area: stack area
- below barebox: malloc area
- 0x41000000 start of @b barebox
@section get_imx23evk_binary How to get the bootloader binary image:
Using the default configuration:
@verbatim
make ARCH=arm imx23evk_defconfig
@endverbatim
Build the bootloader binary image:
@verbatim
make ARCH=arm CROSS_COMPILE=armv5compiler
@endverbatim
@note replace the armv5compiler with your ARM v5 cross compiler.
*/
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